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//@ build-pass (FIXME(62277): could be check-pass?)
#![allow(dead_code, unused)]
use std::task::Poll;
struct K;
struct E;
fn as_result() -> Result<(), E> {
// From Result
let K = Ok::<K, E>(K)?;
// From Poll<Result>
let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
// From Poll<Option<Result>>
let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
Ok(())
}
fn as_poll_result() -> Poll<Result<(), E>> {
// From Result
let K = Ok::<K, E>(K)?;
// From Poll<Result>
let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
// From Poll<Option<Result>>
let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
Poll::Ready(Ok(()))
}
fn as_poll_option_result() -> Poll<Option<Result<(), E>>> {
// From Result
let K = Ok::<K, E>(K)?;
// From Poll<Result>
let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
// From Poll<Option<Result>>
let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
Poll::Ready(Some(Ok(())))
}
fn main() {
}
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